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Finding the Fourth Proportional to 156,782.70, 234,828.45 and 136,046.70

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Solution

The fourth proportional to 156,782.70, 234,828.45 and 136,046.70 is: 203,770.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,782.70 : 234,828.45 = 136,046.70 : x
  2. Step 2: Convert to fraction form
    156,782.70/234,828.45 = 136,046.70/x
  3. Step 3: Cross multiply
    156,782.70x = 234,828.45 × 136,046.70
  4. Step 4: Simplify right side
    156,782.70x = 31,947,635,688.62
  5. Step 5: Solve for x
    x = 31,947,635,688.62/156,782.70
  6. Step 6: Final answer
    x = 203,770.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.